CN111321674B - Support bracket for bridge engineering and construction method thereof - Google Patents
Support bracket for bridge engineering and construction method thereof Download PDFInfo
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- CN111321674B CN111321674B CN202010235948.0A CN202010235948A CN111321674B CN 111321674 B CN111321674 B CN 111321674B CN 202010235948 A CN202010235948 A CN 202010235948A CN 111321674 B CN111321674 B CN 111321674B
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- supporting
- steel bar
- pier
- support bracket
- cylinder
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention particularly relates to a support bracket for bridge engineering and a construction method thereof, which solve the problems of low operation efficiency, difficult guarantee of construction quality and difficult dismantling of the existing support bracket in the application of the installation mode. A supporting bracket for bridge engineering is characterized in that a supporting plate is sleeved on the side surface of a bridge pier, a plurality of first steel bars are arranged on the inner side surface of the supporting plate in an extending mode, a supporting cylinder is coaxially fixed on the lower surface of the supporting plate, a plurality of second steel bars penetrate through the side wall of the supporting cylinder in the radial direction, and an inner lock nut and an outer lock nut are in threaded connection with each second steel bar; a plurality of oblique supporting rods are arranged between the lower surface of the supporting plate and the outer side surface of the supporting cylinder. The support bracket is stable in structure, is firmly connected with a pier, is convenient and quick to install and disassemble, and has the advantages of high safety, simplicity and convenience in operation and long service life.
Description
Technical Field
The invention relates to a construction tool for bridge engineering, in particular to a support bracket for bridge engineering and a construction method thereof.
Background
In bridge engineering, for convenience of bridge construction and later maintenance, a support bracket is usually arranged at a pier for realizing normal construction and maintenance operation of workers and simultaneously placing related construction tools and materials. At present, the support bracket is installed by welding and fixing the support bracket and the embedded steel plate by using hoisting equipment.
However, practice shows that the mounting method of the prior support bracket has the following problems in application: firstly, the support bracket cannot be conveniently and preliminarily fixed on the pier, so that long-time assistance of hoisting equipment is needed in the installation process, the construction efficiency is low, and the construction progress is seriously influenced; secondly, the connection mode of welding with the embedded steel plate needs high-altitude vertical welding of operators, the quality of welding seams is difficult to guarantee, and meanwhile, the support bracket welded and fixed with the pier is difficult to remove.
Disclosure of Invention
The invention provides a support bracket for bridge engineering and a construction method thereof, aiming at solving the problems of low operation efficiency, difficult guarantee of construction quality and difficult dismantling of the existing installation mode of the support bracket in application.
The invention is realized by adopting the following technical scheme:
a supporting bracket for bridge engineering comprises a bearing beam and a pier; the side surface of the pier is sleeved with a supporting plate which is of an annular structure and is horizontally placed, the inner side surface of the supporting plate is provided with a plurality of first steel bars inserted into the pier in an extending mode, the lower surface of the supporting plate is coaxially fixed with a supporting cylinder which is arranged to be attached to the side surface of the pier in a clinging mode, the side wall of the supporting cylinder is radially provided with a plurality of second steel bars with external threads in a penetrating mode, the inner end of each second steel bar is inserted into the pier, and the outer end of each second steel bar penetrates out of the outer side surface of the supporting cylinder; each second steel bar is in threaded connection with an inner lock nut positioned inside the pier and an outer lock nut arranged close to the outer side face of the support cylinder; a plurality of obliquely arranged oblique supporting rods are arranged between the lower surface of the supporting plate and the outer side surface of the supporting cylinder.
According to the invention, the first steel bar can preliminarily fix the support plate, the support cylinder and the bridge pier, so that the second steel bar is convenient to install; the second rod iron can firmly support the backup pad and a support section of thick bamboo tightly on the pier side, prevents that this support bracket laminating is inseparable, takes place to warp when receiving external force extrusion and breaks even, has further promoted the support performance of this support bracket, and the mode of second rod iron threaded connection is convenient to dismantle backup pad and a support section of thick bamboo when later stage is maintained and is changed simultaneously.
The invention relates to a construction method of a support bracket for bridge engineering, which is used for implementing the support bracket for bridge engineering and is realized by the following steps: a. a plurality of first mounting holes and a plurality of second mounting holes are formed in the side surface of the pier, and an inner lock nut is placed in each second mounting hole; b. placing the preassembled support plates and the support cylinders close to the bridge pier, and inserting the first steel bars into the first mounting holes in a one-to-one correspondence manner; c. inserting the second steel bars into the second mounting holes in a one-to-one correspondence manner, and enabling the inner end of each second steel bar to be screwed on the inner lock nut in the corresponding second mounting hole; d. and screwing the outer lock nuts from the outer ends of the second steel bars until the outer lock nuts cling to the outer side surface of the support cylinder, so that the support cylinder is fixedly connected with the bridge pier.
The inner side surface of the supporting plate and the inner side surface of the supporting cylinder are provided with a plurality of first limiting plates which are of L-shaped structures and are distributed along the circumferential direction; a plurality of second limiting plates with rectangular structures are arranged on the outer side surface of the supporting cylinder; each first steel bar correspondingly penetrates through each first limiting plate; the inner end of each second steel bar correspondingly penetrates through each first limiting plate, and the outer end of each second steel bar correspondingly penetrates through each second limiting plate.
First limiting plate and second limiting plate can be injectd the position of first rod iron and second rod iron, have increased the backup pad on the one hand and have supported between a section of thick bamboo and the pier firm in connection nature, and on the other hand has avoided the problem of first rod iron and second rod iron position removal, has further increased the structural stability of backup pad and a support section of thick bamboo.
The side wall of the supporting cylinder is provided with a plurality of sleeves which are sleeved in the middle of each second steel bar in a one-to-one correspondence manner.
The upper surface of backup pad fixedly connected with a plurality of height adjustment mechanism, every height adjustment mechanism's top portion all articulates there is a roof, and the upper surface of roof all closely laminates with the bottom surface of spandrel girder.
The height adjusting mechanism can provide a certain supporting effect for the bearing beam during bridge construction or bearing beam maintenance, and further improves the safety of construction operation.
The height adjusting mechanism is a hydraulic jack or a hydraulic oil cylinder.
Each first steel bar is made of high-ductility steel; each second steel bar is made of high-tension steel.
The first steel bar made of high-ductility steel can enhance the strain resistance of the support bracket, so that the support performance of the support bracket is improved; the high-tension steel has the advantages of good tensile strength and low cost.
The support bracket is reasonable and reliable in structural design, achieves the purpose of quick installation of the support bracket, is stable in structure, is firmly connected with a pier, greatly improves the support performance, can be preliminarily fixed in construction, is convenient and quick to install, is convenient to disassemble due to a threaded connection mode, and has the advantages of high safety, simplicity and convenience in operation, low construction cost and long service life.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially exploded view of the junction of the present invention with a pier;
fig. 3 is a partial structural view of a connection portion with a pier according to the present invention.
In the figure, 1-bearing beam, 2-bridge pier, 3-support plate, 4-first steel bar, 5-support cylinder, 6-second steel bar, 7-internal lock nut, 8-external lock nut, 9-oblique support rod, 10-first limit plate, 11-second limit plate, 12-sleeve, 13-height adjusting mechanism, 14-top plate, 15-first mounting hole and 16-second mounting hole.
Detailed Description
A supporting bracket for bridge engineering comprises a bearing beam 1 and a pier 2; the side surface of the pier 2 is sleeved with a supporting plate 3 which is of an annular structure and is horizontally placed, the inner side surface of the supporting plate 3 is provided with a plurality of first steel bars 4 inserted into the pier 2 in an extending mode, the lower surface of the supporting plate 3 is coaxially fixed with a supporting cylinder 5 which is tightly attached to the side surface of the pier 2, the side wall of the supporting cylinder 5 is radially provided with a plurality of second steel bars 6 with external threads in a penetrating mode, the inner end of each second steel bar 6 is inserted into the pier 2, and the outer end of each second steel bar penetrates out of the outer side surface of the supporting cylinder 5; each second steel bar 6 is in threaded connection with an inner lock nut 7 positioned inside the pier 2 and an outer lock nut 8 tightly attached to the outer side surface of the support cylinder 5; a plurality of inclined supporting rods 9 which are obliquely arranged are arranged between the lower surface of the supporting plate 3 and the outer side surface of the supporting cylinder 5.
The inner side surface of the supporting plate 3 and the inner side surface of the supporting cylinder 5 are provided with a plurality of first limiting plates 10 which are of L-shaped structures and are distributed along the circumferential direction; a plurality of second limiting plates 11 with rectangular structures are arranged on the outer side surface of the supporting cylinder 5; each first steel bar 4 correspondingly penetrates through each first limiting plate 10; the inner end of each second steel bar 6 correspondingly penetrates through each first limiting plate 10, and the outer end of each second steel bar 6 correspondingly penetrates through each second limiting plate 11.
The side wall of the supporting tube 5 is provided with a plurality of sleeves 12 which are sleeved in the middle of each second steel bar 6 in a one-to-one correspondence manner.
The upper surface of backup pad 3 is fixedly connected with a plurality of height adjustment mechanism 13, and the top portion of every height adjustment mechanism 13 all articulates there is a roof 14, and the upper surface of roof 14 all closely laminates with the bottom surface of spandrel girder 1.
The height adjusting mechanism 13 is a hydraulic jack or a hydraulic oil cylinder.
Each first steel bar 4 is made of high-ductility steel; each second steel bar 6 is made of high tensile steel.
The invention relates to a construction method of a support bracket for bridge engineering, which is used for constructing the support bracket for the bridge engineering and is realized by the following steps: a. a plurality of first mounting holes 15 and a plurality of second mounting holes 16 are formed in the side surface of the pier 2, and an internal lock nut 7 is placed in each second mounting hole 16; b. placing the preassembled support plates 3 and the support cylinders 5 close to the bridge pier 2, and inserting the first steel bars 4 into the first mounting holes 15 in a one-to-one correspondence manner; c. inserting the second steel bars 6 into the second mounting holes 16 in a one-to-one correspondence manner, and screwing the inner end of each second steel bar 6 on the inner lock nut 7 in the corresponding second mounting hole 16; d. and screwing the outer lock nuts 8 from the outer ends of the second steel bars 6 until the outer lock nuts 8 cling to the outer side surface of the support cylinder 5, thereby realizing the fixed connection between the support cylinder 5 and the pier 2.
In a specific implementation process, a pin shaft penetrates through the top end part of each height adjusting mechanism 13, two support rods are vertically fixed on the lower surface of each top plate 14, and the lower end parts of the two support rods are respectively sleeved at the two end parts of the pin shafts corresponding up and down; the bottom of each height adjusting mechanism 13 is fixedly connected with the upper surface of the supporting plate 3 through a plurality of bolts.
Claims (5)
1. A supporting bracket for bridge engineering comprises a bearing beam (1) and a pier (2); the method is characterized in that: the side surface of the pier (2) is sleeved with a supporting plate (3) which is of an annular structure and is horizontally placed, the inner side surface of the supporting plate (3) is provided with a plurality of first steel bars (4) which are inserted into the pier (2) in an extending mode, the lower surface of the supporting plate (3) is coaxially fixed with a supporting cylinder (5) which is tightly attached to the side surface of the pier (2), the side wall of the supporting cylinder (5) is radially penetrated with a plurality of second steel bars (6) with external threads, the inner end of each second steel bar (6) is inserted into the pier (2), and the outer end of each second steel bar penetrates out of the outer side surface of the supporting cylinder (5); each second steel bar (6) is in threaded connection with an inner lock nut (7) positioned inside the pier (2) and an outer lock nut (8) tightly attached to the outer side surface of the support cylinder (5); a plurality of obliquely arranged oblique supporting rods (9) are arranged between the lower surface of the supporting plate (3) and the outer side surface of the supporting cylinder (5);
the inner side surface of the supporting plate (3) and the inner side surface of the supporting cylinder (5) are provided with a plurality of first limiting plates (10) which are of L-shaped structures and are distributed along the circumferential direction; a plurality of second limiting plates (11) with rectangular structures are arranged on the outer side surface of the supporting cylinder (5); each first steel bar (4) correspondingly penetrates through each first limiting plate (10); the inner end of each second steel bar (6) correspondingly penetrates through each first limiting plate (10), and the outer end of each second steel bar correspondingly penetrates through each second limiting plate (11).
2. A support bracket for bridge engineering according to claim 1, wherein: the side wall of the supporting cylinder (5) is provided with a plurality of sleeves (12) which are sleeved in the middle of each second steel bar (6) in a one-to-one correspondence manner.
3. A support bracket for bridge engineering according to claim 1, wherein: the upper surface of backup pad (3) fixed connection has a plurality of height adjustment mechanism (13), and the top portion of every height adjustment mechanism (13) all articulates there is a roof (14), and the upper surface of roof (14) all closely laminates with the bottom surface of spandrel girder (1).
4. A support bracket for bridge engineering according to claim 3, wherein: the height adjusting mechanism (13) is a hydraulic jack or a hydraulic oil cylinder.
5. A support bracket for bridge engineering according to claim 1, wherein: each first steel bar (4) is made of high-ductility steel; each second steel bar (6) is made of high-tension steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235948.0A CN111321674B (en) | 2020-03-30 | 2020-03-30 | Support bracket for bridge engineering and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235948.0A CN111321674B (en) | 2020-03-30 | 2020-03-30 | Support bracket for bridge engineering and construction method thereof |
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| Publication Number | Publication Date |
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| CN111321674A CN111321674A (en) | 2020-06-23 |
| CN111321674B true CN111321674B (en) | 2021-07-20 |
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| CN202010235948.0A Active CN111321674B (en) | 2020-03-30 | 2020-03-30 | Support bracket for bridge engineering and construction method thereof |
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Families Citing this family (1)
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| CN114016433A (en) * | 2021-12-24 | 2022-02-08 | 中铁一局集团有限公司 | Truss bracket device of No. 0 block and No. 1 block and construction method thereof |
Citations (7)
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| US8522381B1 (en) * | 2010-09-07 | 2013-09-03 | OCCI, Inc. | System and method for bridge pier replacement |
| CN204080649U (en) * | 2014-09-30 | 2015-01-07 | 福建省第一公路工程公司 | The supporting shelf bracket of a kind of cantilever bridge No. 0 block |
| CN107386117A (en) * | 2017-07-26 | 2017-11-24 | 中交公局第二工程有限公司 | A kind of device of double rod iron method construction bridges bent caps |
| CN207062778U (en) * | 2017-07-13 | 2018-03-02 | 中交二航局第四工程有限公司 | Antidumping rod iron support for cantilever bent cap concreting |
| CN207685674U (en) * | 2017-07-26 | 2018-08-03 | 中交一公局第二工程有限公司 | The device of double rod iron method construction bridges bent caps |
| CN208949736U (en) * | 2018-10-22 | 2019-06-07 | 广西路桥工程集团有限公司 | Capping beam formwork support and its stand |
| CN110172912A (en) * | 2019-05-04 | 2019-08-27 | 湖北省路桥集团有限公司 | A kind of solid pier capping beam processing construction method |
-
2020
- 2020-03-30 CN CN202010235948.0A patent/CN111321674B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8522381B1 (en) * | 2010-09-07 | 2013-09-03 | OCCI, Inc. | System and method for bridge pier replacement |
| CN204080649U (en) * | 2014-09-30 | 2015-01-07 | 福建省第一公路工程公司 | The supporting shelf bracket of a kind of cantilever bridge No. 0 block |
| CN207062778U (en) * | 2017-07-13 | 2018-03-02 | 中交二航局第四工程有限公司 | Antidumping rod iron support for cantilever bent cap concreting |
| CN107386117A (en) * | 2017-07-26 | 2017-11-24 | 中交公局第二工程有限公司 | A kind of device of double rod iron method construction bridges bent caps |
| CN207685674U (en) * | 2017-07-26 | 2018-08-03 | 中交一公局第二工程有限公司 | The device of double rod iron method construction bridges bent caps |
| CN208949736U (en) * | 2018-10-22 | 2019-06-07 | 广西路桥工程集团有限公司 | Capping beam formwork support and its stand |
| CN110172912A (en) * | 2019-05-04 | 2019-08-27 | 湖北省路桥集团有限公司 | A kind of solid pier capping beam processing construction method |
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| Title |
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| 高墩大体积盖梁托架法施工技术;曹玉红;《国防交通工程与技》;20111231;第71-73、55页 * |
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